Visiting the crime scene

"So what do you think Detective Max? "

Inspector Jolly asked curiously. 

"Well for starters, I don't think Ricky is lying. But of course it's just my intuition. But it can very well be wrong. So let's just keep it open for verification whether he is telling the truth or lying. 

Now based on the current information that we have managed to aquire, there can only be a total of four possibilities of this case. "

Max said confidently. 

"Four? "

Lisa's ears perked up immediately as she listened carefully. 

"One, Ricky is lying to all of us. In fact he was really the one who killed Dr. Watson after he got drunk that night, with his motive being the hatred against Dr. Watson for firing him from his job and ruining his career.